/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Lenovo
 * Date: 2022-06-27
 * Time: 9:37
 */

/*
* 使用递归计算1-N的求和
* */
public class Recursion2 {
    public static void main(String[] args) {
        int 
    }
}
